Silicon Powder: Types, Applications and Top Suppliers in China

Silicon powder is an essential industrial raw material. It plays a vital role in metallurgy and electronics. It also has a significant impact on energy storage and chemical manufacturing. Due to the growing global demand for high performance materials, silicon has become an essential component of modern production due to its high purity and chemical stability.

 

Understanding the types, specifications and reliable suppliers of silicone powder is important for B2B buyers. This will help them maintain consistent quality. So, you will achieve higher profit margins.

 

This guide explores the different types, properties, applications and top suppliers of silicon powder in China. Let’s start with our team!

What is Silicon Powder?

 

 

Silicon powder is a finely divided form of crystalline silicon produced through mechanical grinding, chemical reduction, or atomization processes. It can be customized to meet industrial specifications in terms of particle size, morphology, and purity depending on the production method.

 

Silicon metal is essential in industries such as steelmaking, semiconductors, lithium-ion battery manufacturing, solar cells and semiconductors because of its high thermal conductivity. Silicon element is versatile enough to be used as a deoxidizer for metallurgy and electronics, as well a semiconductor in chemical synthesis.

Types of Silicon Powder

 

Type	Purity Level	Particle Size Range	Common Applications	Key Features
Metallurgical Grade Silicon Powder	98%–99.5%	45–325 mesh	Aluminum alloys, steelmaking, foundry	High strength, cost-effective, and stable performance
Chemical Grade Silicon Powder	99%–99.9%	75–150 µm	Silicone products, resins, silanes	High reactivity and excellent compatibility with chemicals
Electronic Grade Silicon Powder	≥99.999%	1–10 µm	Semiconductors, solar panels, ICs	Ultra-high purity, minimal impurities
Micronized Silicon Powder	99%–99.99%	<5 µm	Lithium-ion batteries, coatings, composites	High surface area and uniform distribution
Spherical Silicon Powder	99.9%–99.99%	1–50 µm	3D printing, thermal interface materials	Excellent flowability and heat resistance

 

Key Properties and Specifications of Silicon Powder

 

Property	Specification / Range	Remarks / Industrial Importance
La pureté	98% – 99.999%	Determines grade and suitable application area
Appearance	Grey or dark grey fine powder	Metallic luster; uniform particle structure
Particle Size	1 µm – 500 µm	Customizable for alloy, electronic, or ceramic uses
Density	2.33 g/cm³	Ensures product stability and mechanical strength
Melting Point	1414°C	Supports high-temperature metallurgical processes
Thermal Conductivity	148 W/m·K	Suitable for heat management applications
Electrical Conductivity	Semi-conductive	Used in semiconductors and solar materials
Hardness (Mohs)	6.5 – 7.0	Provides wear resistance for coatings and composites
Packaging	25 kg bags / 1-ton jumbo bags	Moisture-proof and vacuum-sealed options available

Industrial Applications of Silicon Powder

 

Silicon powder’s applications span multiple industries:

 

• Metalurgical Applications: It is used as a deoxidizer in the production of aluminum alloys and steel. It increases mechanical strength, corrosion resistant, and casting quality.
• Electronics and Semiconductors: The backbone of modern electronic devices, silicon wafers and solar cells, are made from ultra-pure silicon powder.
• Chemical Industry:It is used as a raw materials in the manufacture of sealants, silicones, and resins for use in the construction and automotive industries.
• Batteries and Energy Storage:As it has a higher energy density than traditional graphite, micronized silicon is being increasingly used as anodes in lithium-ion batteries for electric vehicles and storage of renewable energy.
• Additive Manufacturing (3D printing): The high heat resistance and excellent flow characteristics of spherical silicon powder make it an ideal powder for use in powder-bed fusion processes and other additive manufacturing processes.
• Coatings and Ceramics: Use to improve hardness, wear resistance and heat stability of coatings and high performance ceramics.

Top 5 Silicon Powder Producers/ Wholesale/ Suppliers in China

 

 

 

Our team give a comprehensive guide about top silicon powder manufacturers in China. Let’s go with our team!

1: Chengdu Jinchun Metallic Materials Co., Ltd.

 

 

Présentation de l'entreprise

 

Chengdu Jinchun Metallic Materials is a leading manufacturer in China. We specializes in metallic powders such as silicon, titanium and cobalt powders. Our company’s advanced refinement processes, strict quality controls, and commitment towards customized solutions have made it a leader in China.

Key Strengths

 

• Multiple purity levels available up to 99.99%
• ISO standards for production and export
• Focus on B2B partnership and OEM customization
• Globally recognized for delivering high-quality materials

Recommended Reason

 

Importers who are looking for stable supply chains and consistent quality.

 

2: Shanghai Joinpow Materials Science Co., Ltd.

Présentation de l'entreprise

 

Joinpow Materials is an integrated producer of silicon metals for chemical and metallurgical applications. It is a leading supplier in the industry. It provides high-quality materials to the chemical, foundry and metallurgical industries.

Key Strengths

 

• R&D team that is innovative and robust
• Supply chain management that is consistent for large buyers
• Experience in global exporting to over 30 countries

Recommended Reason

 

Companies looking for competitive pricing and reliable product quality.

3: CNPC Powder Material Co., Ltd.

Présentation de l'entreprise

 

CNPC Powder’s spherical metallic powders are used for additive manufacturing, coatings and advanced composites. Silicon metals from CNPC Powder are known for their high purity and uniformity.

Key Strengths

 

• Advanced gas atomization technologies
• The morphology of the spherical particles is excellent
• Ideal for 3D printing materials and thermal interface materials

Recommended Reason

 

B2B buyers for the electronics and additive manufacturing sectors.

4: Anyang Huatuo Metallurgy Co., Ltd.

Présentation de l'entreprise

 

Huatuo Metallurgy specializes in the production of ferroalloys and metallurgical grade silicon powder. It supplies steel plants and foundries domestically and abroad.

Key Strengths

 

• Bulk Pricing
• Experience in the steel and iron industries
• Supply capacity for large volume orders

Recommended Reason

 

Customers in the metallurgical or casting sector who require high-volume, cost-efficient products.

5: Luoyang Tongrun Nano Technology Co., Ltd.

Présentation de l'entreprise

 

Tongrun Nano is a specialist in high-purity, nano- and micron sized materials for research and battery application.

Key Strengths

 

• Nanotechnology and advanced capabilities
• Concentrated on lithium-ion batteries
• R&D clients can choose from a variety of custom synthesis options

Recommended Reason

 

High-tech industries such as semiconductors and nanomaterials.

Why Source Silicon Powder from China?

1: World-Class Manufacturing Technology

 

China is a world leader in the production of metal and non-metal particles, using cutting-edge technologies for purification, grinding and atomization.

2: Price Competition and Scale Economies

 

Chinese suppliers offer significant cost savings compared to Western markets due to their strong industrial integration, lower labor costs and low prices.

3: Diverse Product Portfolio

 

Buyers can find a wide range of silicon metal from metallurgical to electronic-grade–all within a single sourcing hub.

4: Expertise in export proven

 

The majority of leading Chinese manufacturers have ISO, SGS and ROHS certificates, which ensures compliance with international standards.

5: Customization and OEM services

 

Chinese suppliers can customize particle size, purity and packaging to meet the specific technical requirements of buyers.

6: Fast and Reliable Delivery

 

With strong logistics networks and global shipping experience, sourcing from China is efficient and reliable.

7: Innovation and Growth

 

Many Chinese producers invest in eco-friendly and sustainable processes to align with global trends towards green industries.

Step-by-Step Buying Guide for Importers of Silicon Powder

Step 1: Define your requirements

 

Find the right type, purity and particle size for your application, whether it’s for metallurgical or electronic use, or for battery usage.

Step 2: Shortlist suppliers and conduct research

 

To shortlist reliable suppliers, use trade platforms, certifications and reviews. Pay attention to quality assurance and export experiences.

Step 3: Request technical data and certifications

 

To ensure that your product meets the standards you set, ask for the Technical Data Sheets (TDS), Material Safety Data Sheets (MSDS) and Certificate of Analysiss (COA).

 

Step 4: Obtain and Test Samples

 

Before large-scale purchase, test small samples for purity, particle size distribution, and performance consistency.

Step 5: Negotiate Terms and MOQ

 

Discuss pricing based on volume, required purity, and packaging. Confirm minimum order quantities (MOQs) and lead times early in the process.

Step 6: Conduct Factory Audits or Video Inspections

 

Inspect production facilities (physically or virtually) to verify the supplier’s manufacturing capacity, equipment, and quality control process.

Step 7: Finalize Contract and Logistics

 

Clearly define specifications, delivery terms (FOB/CIF), and payment methods. Request proper export documentation, including COA, invoice, packing list, and bill of lading.

Step 8: Establish Long-Term Partnership

 

After successful delivery and quality confirmation, maintain a consistent partnership. Long-term relationships with reliable Chinese suppliers often lead to better pricing and technical support.

Final Thoughts

 

Silicon powder is an essential component of the industrial revolution, driving advances in metallurgy and electronics, as well as chemicals and renewable energy. Importers can be assured of high-quality materials and stable supplies by sourcing from trusted Chinese companies like Chengdu Jinchun Metallic Materials Co. Ltd.

 

Businesses can improve their procurement efficiency by following a systematic approach to sourcing. This will help them stay on top of the global materials market, which is rapidly changing.

Most Asked Questions

Q1: What are the different purity levels of silicon metal available?

 

Answer: Purity levels can range from 98% purity for metallurgical grade to 99.999% purity for electronic-grade silica powder depending on the application.

Q2: What industries are the biggest users of silicon element?

 

Answer: It is widely used in 3D printing, metallurgy and electronics.

Q3: How can importers guarantee the quality of silica powder?

 

Answer: Ask for detailed documentation, such as COAs, MSDSs, and TDSs, and conduct laboratory tests to determine purity and particle sizes.

Q4: Why is China the preferred source of silicon metal?

 

Answer: China is the best sourcing destination because of its cost-effectiveness, advanced manufacturing and global logistics. It also has high standards for quality.

Q5: Can I order custom grades or particle sizes?

 

Answer: Yes. Manufacturers like Chengdu Jinchun Metallic Materials Co., Ltd. offer B2B customers custom grades, tailored purities levels, and packaging options.

 

https://www.jinchunmetal.com/?s=Silicon+powder